<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<form action="">
  <input type="text" name="username" placeholder="用户名">
  <input type="password" name="password" placeholder="密码">
  <input type="button" value="登录" @click="login()">
</form>
<script src="js/vue.min.js"></script>
<script src="js/axios.min.js"></script>
<script>
  let v= new Vue({
    el:"form",
    methods:{
      login(){
        //得到form表单中的数据
          let data = new FormData(document.querySelector("form"));
          axios.post("/login",data).then(function (response){
              if (response.data==1){
                  alert("登陆成功!");
                  location.href="/";
              }else if (response.data==2){
                  alert("用户名不存在!")
              }else {
                  alert("密码错误!")
              }
          })
      }
    }
  })
</script>
</body>
</html>